AS1929 University of Massachusetts - AMHERST

UMASSNET-NET - University of Massachusetts - AMHERST · registered in the United States

IPv4 addresses1,7923 prefixes · <0.001% of announced IPv4

Rank in United States#6,551largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#24,864of 79,396 networks with IPv4

IPv616 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS1929 in ASN lookup Look up an IP in this network (69.16.44.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

69.16.44.0/23
198.22.255.0/24
205.172.168.0/22

IPv6 prefixes

All 1 prefix.

2001:48e8:6400::/44

Other ASNs named University of Massachusetts - AMHERST

2 other networks use the same organisation name; together with AS1929 they announce 84,224 IPv4 addresses.

ASNNameIPv4 addresses

AS1249FIVE-COLLEGES-AS - University of Massachusetts - AMHERST US82,432

AS168UMASS-AMHERST - University of Massachusetts - AMHERST USIPv6 only

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AS14976#6553 SMART-CITY-DNCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP1,792

AS36221#6554 ESOSOFT - Esosoft Corporation1,792

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources